Vagrantfile

# -*- mode: ruby -*-
# vi: set ft=ruby :

# Specify Vagrant provider as Virtualbox
ENV['VAGRANT_DEFAULT_PROVIDER'] = 'virtualbox'

require 'yaml'

ANSIBLE_PATH = File.join(__dir__, 'deploy') # absolute path to Ansible directory

# Set Ansible roles_path relative to Ansible directory
ENV['ANSIBLE_ROLES_PATH'] = File.join(ANSIBLE_PATH, 'vendor', 'roles')

config_file = File.join(ANSIBLE_PATH, 'group_vars', 'development', 'wordpress_sites.yml')

def fail_with_message(msg)
  fail Vagrant::Errors::VagrantError.new, msg
end

if File.exists?(config_file)
  wordpress_sites = YAML.load_file(config_file)['wordpress_sites']
  fail_with_message "No sites found in #{config_file}." if wordpress_sites.to_h.empty?
else
  fail_with_message "#{config_file} was not found. Please set `ANSIBLE_PATH` in your Vagrantfile."
end

if !Dir.exists?(ENV['ANSIBLE_ROLES_PATH']) && !Vagrant::Util::Platform.windows?
  fail_with_message "You are missing the required Ansible Galaxy roles, please install them with this command:\nansible-galaxy install -r requirements.yml"
end

Vagrant.require_version '>= 1.5.1'

Vagrant.configure('2') do |config|
  config.vm.box = 'ubuntu/trusty64'
  config.ssh.forward_agent = true

  # Required for NFS to work, pick any local IP
  config.vm.network :private_network, ip: '192.168.50.5'

  hostname, *aliases = wordpress_sites.flat_map { |(_name, site)| site['site_hosts'] }
  config.vm.hostname = hostname
  www_aliases = ["www.#{hostname}"] + aliases.map { |host| "www.#{host}" }

  if Vagrant.has_plugin? 'vagrant-hostsupdater'
    config.hostsupdater.aliases = aliases + www_aliases
  else
    fail_with_message "vagrant-hostsupdater missing, please install the plugin with this command:\nvagrant plugin install vagrant-hostsupdater"
  end

  if Vagrant::Util::Platform.windows?
    wordpress_sites.each_pair do |name, site|
      config.vm.synced_folder local_site_path(site), remote_site_path(name), owner: 'vagrant', group: 'www-data', mount_options: ['dmode=776', 'fmode=775']
    end
  else
    if !Vagrant.has_plugin? 'vagrant-bindfs'
      fail_with_message "vagrant-bindfs missing, please install the plugin with this command:\nvagrant plugin install vagrant-bindfs"
    else
      wordpress_sites.each_pair do |name, site|
        config.vm.synced_folder local_site_path(site), nfs_path(name), type: 'nfs'
        config.bindfs.bind_folder nfs_path(name), remote_site_path(name), u: 'vagrant', g: 'www-data', o: 'nonempty'
      end
    end
  end

  if Vagrant::Util::Platform.windows?
    config.vm.provision :shell do |sh|
      sh.path = File.join(ANSIBLE_PATH, 'windows.sh')
    end
  else
    config.vm.provision :ansible do |ansible|
      ansible.playbook = File.join(ANSIBLE_PATH, 'dev.yml')
      ansible.groups = {
        'web' => ['default'],
        'development' => ['default']
      }

      if vars = ENV['ANSIBLE_VARS']
        extra_vars = Hash[vars.split(',').map { |pair| pair.split('=') }]
        ansible.extra_vars = extra_vars
      end
    end
  end

  config.vm.provider 'virtualbox' do |vb|
    # Give VM access to all cpu cores on the host
    cpus = case RbConfig::CONFIG['host_os']
      when ENV['NUMBER_OF_PROCESSORS'] then ENV['NUMBER_OF_PROCESSORS'].to_i
      when /darwin/ then `sysctl -n hw.ncpu`.to_i
      when /linux/ then `nproc`.to_i
      else 2
    end

    # Customize memory in MB
    vb.customize ['modifyvm', :id, '--memory', 1024]
    vb.customize ['modifyvm', :id, '--cpus', cpus]

    # Fix for slow external network connections
    vb.customize ['modifyvm', :id, '--natdnshostresolver1', 'on']
    vb.customize ['modifyvm', :id, '--natdnsproxy1', 'on']
  end
end

def local_site_path(site)
  File.expand_path(site['local_path'], ANSIBLE_PATH)
end

def nfs_path(site_name)
  "/vagrant-nfs-#{site_name}"
end

def remote_site_path(site_name)
  "/srv/www/#{site_name}/current"
end